Subjective Questions: I.What is root. Give its different types and functions. What is stem? Give its descriptive terms. Describe different types of stem. Describe different types of underground stems. Give their importance. Describe different special types of stems. What is leaf? Give its functions

Root The cylindrical plant organ –without chlorophyll. growing towards the gravity is called root. Tap root The root directly raised from the seed is called tap root. Fibrous roots tap The long and slender tap root with Slender branches is called fibrous tap root.